Bluetti B300K LiFePO4 Expansion Battery | 2764.8Wh | 4000 Cycles | Fast Charging | Modular and Expandable
Bluetti B300K LiFePO4 Expansion Battery | 2764.8Wh | 4000 Cycles | Fast Charging | Modular and Expandable
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- Price: $1,359.00
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Shipping & Returns
Shipping & Returns
Shipping & Returns
Order Confirmation:
As soon as you place your order, you will receive a confirmation email. After that, we double-check if all items ordered are in stock and available for immediate shipment. If your order is available for the delivery within the advertised time frame, we will submit it for shipment to the warehouse. If the expected delivery time exceeds the advertised time frame, we'll reach out to you via email and/or phone to confirm the order.
Order Shipment:
Within 1-2 business day from the time the item has been shipped, you will receive an email confirmation with tracking number. If you would not receive tracking information within 6 business days of your order, feel free to follow up with us at support@epowerguys.com.
For LTL shipments, Free Shipping is Standard Curbside Delivery.
Curbside delivery is defined as delivery of the freight as close to the actual delivery address as possible. Please remember the size of the tractor trailer and certain safety precautions may prevent the freight carrier from delivering the freight at the actual curb or delivery address.
For addresses located on a cul-de-sac or dead-end street, curbside delivery is not guaranteed. In this case, the customer may need to meet the driver at the nearest intersection that the delivery truck can access.
In special cases, when the customer's address is in a high cost delivery area (e.g. remote suburbs or the center of a large city) an additional delivery fee may be required. This mainly applies to ZIP codes 10000-15000, and may also apply to some addresses in the New England Area (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont), Washington and Oregon.
Note - items heavier than 1,400 lbs may require delivery to a delivery dock or fork truck to unload them. Additional charges might apply.
To confirm the availability of Fee Shipping - Standard Curbside Delivery Option, please contact the ePowerGuys Team before placing your order.
Estimated Time of Arrival:
Our standard shipping out time for orders from our warehouse to the customer is 4-12 business days and most orders are shipped within 3-6 business days of placing the order. Custom-made products are usually shipped within 8-12 weeks. If the expected shipping date for your order would fall outside of the advertised 4-12 business day time frame, our customer service team will reach out to you to confirm if you are OK with that date.
Areas Covered:
All estimated delivery dates and shipping costs advertised on the website apply the Contiguous United States only. Please contact our customer service team to discuss the time and cost of shipping to Hawaii or Alaska. We don't ship directly to Canada, but we can ship your order to the freight carrier of your choice.
Damages:
It is very important that you inspect the packaging of your items and the items themselves when they arrive and check if you received all boxes listed on the delivery receipt.
If you notice any damage or shortage of packages, you must make note of it on the bill of lading, take pictures, and REFUSE DELIVERY. Your note should say "refused due to damage". You must also take photos of all sides of the box and send them to us within 24 hours. If there are no damages visible before opening the box, you must note "subject to further inspection, may contain concealed damage".
If a shipment with a damaged item is accepted by the recipient (even if the bill of lading would include information about the damage), we will not be able to offer you a replacement item or a refund for your order.
After receiving the shipment and before unpacking the item, be sure to take photos of the packaging from all sides, even if there are no visible signs of damage - this is very important if after unpacking it turns out that the item has concealed damage and we would have to file a complaint with the carrier / manufacturer of the item.
If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.
Cancellations & Refunds:
We can cancel your non-custom-made or non-made-to-order order at absolutely no cost to you before the shipping label or Bill of Lading has been created.
Custom-made or made-to-order products are not eligible for refunds after the order and its conditions have been confirmed by the customer.
Orders delivered outside the United States are not eligible for refunds.
If your order arrived damaged, "Damages" section applies.
To be eligible for a return, the item must be unused and in the same condition as you received it. It must also remain in the original packaging, and the packaging must be in a perfect condition. We do not charge restocking fees or return shipping fees. All eligible returns are 100% free.
Our refund policy lasts 45 days. If 45 days have gone by since you received your item, unfortunately, we can’t offer you a refund.
Before approving the return procedure for your item, we must receive photos of the unpacked product (on each side) and the product packed in the original packaging (on each side) - based on the photos received, we can assess whether the item is subject to the return procedure.
If you want to return the ordered product, it has to be arranged in the same manner it arrived to you. For products delivered via LTL freight, it must be packed in its original packaging on a pallet and made available for pickup by our carrier within 45 days from the date the product was delivered to you, at the exact same location to which it was delivered.
For products not shipped as LTL freight (e.g. via FedEx Ground / UPS / USPS), the product you wish to return must be packed in the original packaging and made available to the courier for pickup or dropped off at the local branch of the shipping company within 45 days of where the product was delivered to you.
Please contact us at support@epowerguys.com before returning an item to discuss shipping details.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at support@epowerguys.com.
Lowest Price Guarantee
Lowest Price Guarantee
We work very hard to ensure that we offer the absolute best prices online. If you find another legitimate online store that offers a lower prices on an identical item we stock (including shipping, tax, etc.), we will beat the competitor's price by 10% of the difference! Please see below for complete details.
Please fill out the form below to find out if you qualify for the discount. In most cases you will receive a response within 1 business day.
To request your 110% Best Price Guarantee simply email us a link to the same product on our website, or on our competitors' website.
Our 110% Price Guarantee has some limitations:
- Promotions such as rebates and buy one, get one free offer are not eligible
- The item must be in stock on the competitors' website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (i.e.; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer of the product in question, and must not be violating advertising price agreements with the manufacturer
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
There may be brands excluded from that offer. Please contact us for further information.
VIP Extended Warranty - Why is it worth it?
VIP Extended Warranty - Why is it worth it?
Top Reasons to Choose Our VIP Extended Warranty:
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Guaranteed Repair or Replacement
Comprehensive Coverage: If your unit encounters any issues, we'll repair it or simply send you a new or refurbished product of similar quality.
Fast Resolutions: We prioritize quick service to minimize any inconvenience to you. -
Zero Hidden Costs
No Deductibles: You won’t pay anything extra when you need service.
Transparent Terms: What you see is what you get—no surprises. -
VIP Coverage for 1, 2, or 3 Years from the Date of Purchase
Hassle-Free: Enjoy complete coverage for your purchase throughout the entire warranty period with no additional costs.
No Unnecessary Questions: We make the process smooth and straightforward.
Exceptional Benefits:
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Extended Protection Options
Flexible Terms: Choose coverage for 1, 2, or 3 years based on your needs.
Beyond Manufacturer’s Warranty: Enjoy additional protection that surpasses the Manufacturer's Warranty. -
Covers Normal Wear and Tear
Real-World Use: We cover breakdowns from everyday use, not just defects.
Power Surge Protection: Includes mechanical or electrical failures caused by power surges. -
Dedicated Support Team
Expert Assistance: Our technical support team is always ready to help.
Easy Communication: Reach us via phone or email for prompt service.
Why This Warranty is a Smart Investment:
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Protect Your Investment
Avoid Unexpected Costs: Save potentially hundreds on repairs or replacements.
Long-Term Savings: The warranty pays for itself with just one claim. -
Peace of Mind
Stress-Free Ownership: Use your product without worrying about potential issues.
Reliable Service: Trust that we have you covered, no matter what happens. -
Easy and Efficient Claims Process
Simple Steps: Provide photos or videos of the issue—no complicated paperwork.
Quick Turnaround: We work swiftly to resolve your claims.
Effortless Claim Process:
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Document the Issue
Snap a photo or record a video of the problem. -
Contact Us
Email: support@epowerguys.com
Phone: +1 (888) 556-5886 -
Quick Troubleshooting
Our team will help identify simple fixes or confirm if a replacement is needed. -
Receive Replacement
If necessary, we'll guide you through receiving and installing your replacement component.
What the VIP Extended Warranty Does Not Cover:
- Manufacturer's Warranty or Recalls: Repairs covered by the manufacturer's warranty or recalls.
- Unauthorized Service: Damage caused by unauthorized service or parts.
- Extraordinary Events: Loss or damage from events like invasion, rebellion, riots, acts of god, strikes, or civil disturbances.
- Additional Costs: Costs for installation, setup, or diagnostic services unless specified, return shipping fees.
Eligible Products:
- Solar Panels
- Inverters
- Batteries
- Portable Power Stations
Contact Us Anytime:
ePowerGuys
30 N Gould St, Ste 24751
Sheridan, WY 82801
Email: support@epowerguys.com
Phone: +1 (888) 556-5886
Invest in Peace of Mind:
The VIP Extended Warranty isn’t just a service; it’s a commitment to your long-term satisfaction. Protect your valuable solar and power solutions today and enjoy stress-free ownership for years to come!
The Bluetti B300K LiFePO4 Expansion Battery is a robust addition for anyone looking to expand their power capacity with reliability and efficiency. Boasting a substantial 2,764.8Wh capacity and over 4,000 life cycles, it’s designed to support both daily power needs and emergency backup situations. With automotive-grade LiFePO4 technology, this battery offers an extended lifespan and top-tier safety, ensuring long-term performance.
Built for compatibility, the B300K integrates effortlessly with Bluetti’s popular power stations, such as the AC200L, AC200MAX, AC300, and AC500, giving users the flexibility to customize their energy setups. For those needing substantial power storage, it can be expanded to an incredible 33,168Wh when connected to the AC500, making it versatile for a wide range of energy demands.
Additionally, Bluetti backs the B300K with a 3+1 years warranty*, highlighting their commitment to long-term quality. With a convenient USB-A port, this battery can also serve as a standalone power source, allowing users to charge essential devices anytime, anywhere.
Bluetti offers 5 models of LiFePO4 Expansion Battery Series:
- Bluetti B230 LiFePO4 Expansion Battery | 2048Wh | 3500 Cycles
- Bluetti B300K LiFePO4 Expansion Battery | 2764.8Wh | 4000 Cycles
- Bluetti B300S LiFePO4 Expansion Battery | 3072Wh | 3500 Cycles
- Bluetti B500 LiFePO4 Expansion Battery | 4960Wh
- Bluetti B80P LiFePO4 Expansion Battery | 806Wh | 3000 Cycles
CA Residents: See Prop 65 Warning
Features
High-Capacity Power for Daily Use and Backup
The 2,764.8Wh capacity with 4,000+ cycles makes this battery ideal for everyday energy needs or backup during outages.
Advanced LiFePO4 Battery Technology
Automotive-grade LiFePO4 cells provide a long lifespan and enhanced safety.
Effortless Compatibility
Seamlessly pairs with Bluetti’s AC200L, AC200MAX, AC300, and AC500 power stations.
Expandable Power Options
Scale up to 33,168Wh when connected to the AC500 for flexible energy storage.
Extended Warranty
3+1 years warranty ensures long-term protection and reliability.
Versatile Standalone Use
Features a USB-A port for convenient device charging on the go.
Rapid Recharge for Minimal Downtime
Pair it with the AC300 or AC500, and this battery powers up to 80% in just 45 minutes—perfect for quick recharges, keeping you ready for work, activities, or emergencies, at home or on the go.
Weight and Dimensions
Weight (lbs) | 65.04 | |
Dimensions | ||
Length | Width | Height |
20.67" | 12.87" | 8.23" |
Specifications
Model | B300K |
Battery Type | LiFePO₄ (Lithium Iron Phosphate) |
Battery Capacity | 2,764.8Wh (51.2V, 54Ah) |
Life Cycles | 4,000+ Cycles to 80% Original Capacity |
USB-A | 12W Max., 5V / 2.4A |
Net Weight | Approx. 29.5kg (65.04lbs) |
Dimensions (L × W × H) | 525 × 327 × 209mm (20.67 × 12.87 × 8.23in) |
Charging Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | Up to 1 month: -20°C to 40°C (-4°F to 104°F) Up to 6 months: -20°C to 25°C (-4°F to 77°F) |
Charging Current | 60A Max. (Current may decrease outside specified temperatures) |
2 × Expansion Port | 58.4VDC Max., 90A Max. |
Discharging Temperature | -20°C to 40°C (-4°F to 104°F) |
Working Humidity | 5% to 95%RH |
Discharging Current | 70A Max. |
FAQ
How to claim a warranty?
Once you receive your product, please register to claim your warranty on our website.
Why doesn't the B300K drain all its power?
The B300K retains a portion of its energy to prevent over-discharging, which helps protect the battery's lifespan and ensures long-term performance.
Can I leave the battery uncharged after fully discharging?
No, it's important to recharge the B300K in time before the SoC drops to 1% to avoid potential damage. Additionally, ensure it's placed in an environment of at least 10°C (50°F) for at least 12 hours before recharging.
Which BLUETTI power stations can work with B300K?
B300K is compatible with AC200L, AC200MAX, AC300, and AC500. When connecting to AC500, the P090D to P150D cable is required for connecting with AC500 and sold separately.
Can I use the B300K alone?
Yes. B300K is a standalone power source with a 12W USB-A port.
Note: The B300K can only be charged by connecting to the AC500/AC300/AC200L/AC200MAX
Does the B300K support power bank mode?
No.
What are the differences between B300 and B300K?
B300 B300K
Battery Capacity 3,072Wh 2,764.8Wh
Charge Cycles 3,500+ 4,000+
Weight 36.1kg 29.5kg
Output USB-A/USB-C/12V Port 12V USB-A
What are the differences between B300S and B300K?
B300S B300K
Battery Capacity 3,072Wh 2,764.8Wh
Charge Cycles 3,500+ 4,000+
Max. Current 90A 60A
Weight 36.1kg 29.5kg
Output USB-A/USB-C/12V Port 12V USB-A
How many B300K batteries can l connect with AC300? Can l mix B300K/B300/B300S?
The AC300 supports connecting with up to 4 B300 / B300K using the P090A cable.
Note: The AC300 can mix and match with B300 and B300K. However, it cannot connect B300, B300K, and B300S batteries simultaneously.
How many B300K batteries can l connect with AC500? Can l mix B300K/B300/B300S?
The AC500 supports up to 6 B300K. The P150D to P090A cable is required for connecting the AC500 with B300K or B300K with B300S.
The AC500 can mix and match with B300, B300S, and B300K, with up to 6 total battery packs.
Note: For the combo with one AC500 unit, if B300 is included, up to 4 battery packs can be connected; if not, up to 6 packs can be connected.
How many B300K batteries can l connect with AC200L? Can l mix B300K/B300/B230/B210?
The AC200L supports up to 2 B300K for up to 7,577.6Wh capacity using the P090D cable.
Note: AC200L can only mix with B300 and B300K.
How many B300K batteries can l connect with AC200MAX? Can l mix B300K/B300/B230/B210?
AC200MAX supports up to 2 B300K for up to 7577.6Wh capacity using the P090D cable.
How long does it take to charge the B300K to 80%?
Connecting with AC300 / AC500, you can charge the B300K to 80% in 45 minutes using a 30A charging cable.
Note: For reference ONLY.
Can one AC200MAX expansion port connect to the B300K and the other to the B230/B210?
Yes, you can.
If the B300K is mixed with other battery packs, can I monitor the status of different packs?
Yes. Connect it to the AC300 / AC500 / AC200L / AC200MAX, and you can control the system via the BLUETTI App at any time, from anywhere.
Can I use B300K alone as a UPS?
No.
Can l use solar panels or car cigaretter lighter to charge B300K?
No. The B300K can only be charged by connecting to the AC500 / AC300 / AC200L / AC200MAX
Can I use or charge B300K in sub-zero temperatures?
A: Temperature ranges for B300K are:
Charge: 0 to 40℃ (32 to 104℉);
Discharge: -20 to 40℃ (-4 to 104℉);
Storage: -20 to 40℃ (-4 to 104℉).
Technically, it can power electrical devices under such situations, but please avoid charging it.
How long can it run on my device?
Running time = Battery capacity × DoD × η ÷ Device rated power DoD refers to Depth of Discharge and η is local inverter efficiency. For B300K, both DoD and η are 90%.
If you run a 100W light bulb with it, the running time will be:
2,764.8Wh × 90% × 90% ÷ 100W ≈ 22.39hrs
Note: The above data is for reference ONLY.
Is B300K waterproof?
No. Also, please do NOT store it in a humid environment for a long time.
Is it possible to replace the built-in battery?
No. If the battery pack is faulty or even dead, please contact Customer Service.
Does the B300K have a Power Bank mode?
No.
What's Included?
INCLUDED | |
1x Bluetti B300K LiFePO4 Expansion Battery
|
Accessories
OPTIONAL | |
Bluetti AC500 P150D to P090D Cable
|
Warranty
- 4-Year Warranty
Videos
Downloads
- Bluetti B300K LiFePO4 Expansion Battery User Manual - Download
Get in touch with us
Text or Call : 888-556-5886 or simply start a live chat with our experts.
Average response time is 39 seconds. We are open 7 days a Week; 8:00 AM - 8:00 PM EST
support@epowerguys.com
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